Hi Graham Mayor,
Thank you for your reply
i found the the link and it's very usfull thank you.
why do i want to hide the mailing?
answer is:
i have a custom template, this template has a bookmark with the total number
of documents. it works fine.
problem is, when the user do mail merge, this fiel show the total number of
documet which is not correct. what i did i change this bookmark to section
page filed but again if the user make a section break, the total number of
document is not correct.
is it clear?